This message can not be sent encrypted because this client does not support the configured encryption method. Please change your user options or contact your administrator.
Signature validation is not possible because public key is missing or incompatible encryption methods were used.
In this paper the order preserving encryption for numeric data is analyzed. An order preserving encryption method for character data in relational databases is proposed.
An example of this would be a service provider that asks for a particular type of encryption method, for which the service requester doesn't have the security infrastructure to support.
Encryption is required for saving and sending mail, but this client does not support the configured encryption method. Please contact your administrator.
All data sent between the client and the server is protected by using Federal Information Processing Standard 140-1 validated encryption methods.
With PGP and other public-key encryption methods, there's no way to deduce someone's private key from the public key.
An order-preserving encryption method operating the encrypted data directly
And what about encryption methods?
The first message decrypted proved to have been U-boat communication from North Atlantic encrypted with4- rotor Enigma, giving credence to the speculation about their encryption method.
